fdt: Rename setup_fdt() and make it prepare also

There is little reason to split these two functions. Bring them together
which simplifies the init sequence.

Signed-off-by: Simon Glass <sjg@chromium.org>

common/board_f.c

@@ -762,7 +762,7 @@ static init_fnc_t init_sequence_f[] = {
 #endif
 	setup_mon_len,
 #ifdef CONFIG_OF_CONTROL
-	setup_fdt,
+	fdtdec_setup,
 #endif
 #ifdef CONFIG_TRACE
 	trace_early_init,
@@ -774,9 +774,6 @@ static init_fnc_t init_sequence_f[] = {
 #endif
 	arch_cpu_init,		/* basic arch cpu dependent setup */
 	mark_bootstage,
-#ifdef CONFIG_OF_CONTROL
-	fdtdec_check_fdt,
-#endif
 	initf_dm,
 	arch_cpu_init_dm,
 #if defined(CONFIG_BOARD_EARLY_INIT_F)

include/fdtdec.h

@@ -797,6 +797,6 @@ int fdtdec_decode_memory_region(const void *blob, int node,
 /**
  * Set up the device tree ready for use
  */
-int setup_fdt(void);
+int fdtdec_setup(void);
 
 #endif

lib/fdtdec.c

@@ -1039,7 +1039,7 @@ int fdtdec_decode_memory_region(const void *blob, int config_node,
 	return 0;
 }
 
-int setup_fdt(void)
+int fdtdec_setup(void)
 {
 #ifdef CONFIG_OF_CONTROL
 # ifdef CONFIG_OF_EMBED
@@ -1065,7 +1065,7 @@ int setup_fdt(void)
 						(uintptr_t)gd->fdt_blob);
 # endif
 #endif
-	return 0;
+	return fdtdec_prepare_fdt();
 }
 
 #endif /* !USE_HOSTCC */